98 lines
3.1 KiB
C#
98 lines
3.1 KiB
C#
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#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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#if HAVE_REFLECTION_EMIT
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using System;
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using System.Reflection.Emit;
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using System.Reflection;
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namespace LC.Newtonsoft.Json.Utilities
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{
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internal static class ILGeneratorExtensions
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{
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public static void PushInstance(this ILGenerator generator, Type type)
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{
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generator.Emit(OpCodes.Ldarg_0);
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if (type.IsValueType())
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{
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generator.Emit(OpCodes.Unbox, type);
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}
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else
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{
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generator.Emit(OpCodes.Castclass, type);
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}
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}
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public static void PushArrayInstance(this ILGenerator generator, int argsIndex, int arrayIndex)
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{
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generator.Emit(OpCodes.Ldarg, argsIndex);
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generator.Emit(OpCodes.Ldc_I4, arrayIndex);
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generator.Emit(OpCodes.Ldelem_Ref);
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}
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public static void BoxIfNeeded(this ILGenerator generator, Type type)
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{
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if (type.IsValueType())
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{
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generator.Emit(OpCodes.Box, type);
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}
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else
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{
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generator.Emit(OpCodes.Castclass, type);
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}
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}
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public static void UnboxIfNeeded(this ILGenerator generator, Type type)
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{
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if (type.IsValueType())
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{
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generator.Emit(OpCodes.Unbox_Any, type);
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}
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else
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{
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generator.Emit(OpCodes.Castclass, type);
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}
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}
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public static void CallMethod(this ILGenerator generator, MethodInfo methodInfo)
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{
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if (methodInfo.IsFinal || !methodInfo.IsVirtual)
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{
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generator.Emit(OpCodes.Call, methodInfo);
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}
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else
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{
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generator.Emit(OpCodes.Callvirt, methodInfo);
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}
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}
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public static void Return(this ILGenerator generator)
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{
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generator.Emit(OpCodes.Ret);
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}
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}
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}
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#endif
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